Final answer:
A diagnosis for Caleb would depend on his specific symptoms. Flu, common cold, and sinus infections are common infectious diseases with overlapping symptoms such as fever, congestion, and cough.
Step-by-step explanation:
In order to provide a possible diagnosis for Caleb, one would need specific symptoms that he is experiencing. However, based on the reference information provided, which discusses various infectious diseases and their symptoms, it is evident that conditions such as flu, common cold, and sinus infections share symptoms like fever, congestion, cough, and aches. Influenza or the flu tends to involve fever, aches, and respiratory symptoms and may require diagnostic tests such as chest radiography and sample collections.
A common cold is usually identified by coughing, sore throat, runny nose, and sometimes fever, and is typically caused by rhinoviruses.
Bacterial rhinosinusitis, or sinus infection, can result from secondary infection post a viral infection, characterized by inflammation within the paranasal sinuses.